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    • Cummins Marine Forum Topics
    • Oil consumption turbo leak

      This topic has 1 reply, has 2 voices, and was last updated byTony Athens 2 years ago

      July 19, 2021 at 1:46 pm Losing oil. 1995 6cta. Yes I did empty, measure, and mark dipstick. I lose about a gallon of oil to 100 gallons fuel burn. Oil sheen out the exhaust. Small drip between turbo and after cooler at the rubber joint. Most is going out the exhaust Iā€™m pretty sure. Two separate problems or could they both be tied into the leak at the turbo? Thanks Jim

      Started by: jim wick in: Cummins Marine Engines

      1 Reply
      July 19, 2021 at 6:02 pm 1) Post a few pics of the turbo showing all Exhaust thru air cleaner… Let me “see” what you are dealing with externally.. 2) “turbo” Holset rebuild kits are in the $300 range.. Are you hands on? You do not even need to remove the turbo to do a “KIT”.

      Last Post by: Tony Athens posted: 2 years ago

    • Oil leak. 450 diamond

      This topic has 4 replies, has 2 voices, and was last updated byjim wick 3 years ago

      May 17, 2020 at 7:40 pm I thought it was the pan gasket. Nope, not so lucky. Itā€™s on the port side. Just above where the pan gasket and rear main seal meet. I have been told by a great retired cummins marine factory mechanic that it looks to be a freeze plug or plate gasket in there. I hope my terminology is correct. Transmission needs to come off and all seals/gasket/plugs need to be redone. I have a company willing to pull it apart, seal it up and put it back …

      Started by: jim wick in: Cummins Marine Engines

      4 Replies
      May 18, 2020 at 8:36 am Hard to see much

      Last Post by: jim wick posted: 3 years ago

    • oil pressure gauges

      This topic has 10 replies, has 4 voices, and was last updated byTony Athens 4 years ago

      December 17, 2019 at 7:13 pm 450 diamonds from 1995. Twins (all 4 gauges, fly-bridge and pilothouse) oil pressure gauges read low. I verified with a set of mechanical gauges right on the engine. if i have 25 psi they read 6 psi. I replaced sending units and made sure they were marked “D” for dual stations. Replaced the gauges, no help. The problem is that they set off my stock cummins alarms behind the tachs at idle, and also dont give me a true reading u…

      Started by: jim wick in: General Discussion

      10 Replies
      January 12, 2020 at 9:52 am Early Cummins off engine harnessing used 14Ga wire for the Ground, the Red + up the the dash, and the purple IGN + back to the engine——————————-Major voltage drops.. All these of those were upgraded to 10Ga down the road.. Running a new direct ground to the panel was a good call.

      Last Post by: Tony Athens posted: 4 years ago

    • Bosch fuel injector pump internal meltdown

      This topic has 4 replies, has 2 voices, and was last updated byjim wick 4 years ago

      June 16, 2019 at 8:38 pm 1995 6cta. Rebuilt three years ago by maybe not the best company. It has ran great for 500 hours and the Bosch fuel injector pump had an internal meltdown. I removed the lifter pump. Lifter pump looks good but there were lots of metal shavings behind it. The internal shaft in the injector pump was a mess. The Bosch pump is now in the rebuild shop. Any thoughts on what may have caused that to fail? I donā€™t want to rebuild it and have it h…

      Started by: jim wick in: Cummins Marine Engines

      4 Replies
      August 8, 2019 at 11:30 am So after all the dust settled, the company did more than they had to, I’m good. They sent me a new pump. I was way out of warranty but they did more than they had to. They all but admitted fault, we all make mistakes. I still have the labor $ but it could have been worse.

      Last Post by: jim wick posted: 4 years ago

    • engine vibration due to alternator?

      This topic has 1 reply, has 2 voices, and was last updated byTony Athens 4 years ago

      May 28, 2019 at 9:13 am pair of 6cta/s running great, port started to vibrate at 1600 rpm, off and on. did not notice hitting anything. shaft seemed smooth/balanced to the touch under way. engine had a noticeable intermittent vibration back at the dock she had a small squeal coming from the alternator shield all wheels including the alternator spun very free, belt is two years old with a little residue on the engine 1. would the alternator act differently when it is a…

      Started by: jim wick in: Cummins Marine Engines

      1 Reply
      May 30, 2019 at 7:14 pm 1) Let’s “see” some good clear & in-focus pics of all the “things that turn” with that belt on the front of the engines.. 2) How old “Marine Age wise” are those “things that turn”– You have a coolant pump, alternator, fixed idler and spring idler………. 3) You asked about the alternator– How old is that–Total Hours and “”Marine Age” wi…

      Last Post by: Tony Athens posted: 4 years ago

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